Gentoo Archives: gentoo-server

From: Matt Hallmark <matt@×××××××××××××.com>
To: gentoo-server@l.g.o
Subject: Re: [gentoo-server] pdc 20267 and 2.6.x = corruption
Date: Sun, 09 May 2004 13:38:05
Message-Id: 409EE23D.7080702@cosmictoaster.com
In Reply to: Re: [gentoo-server] pdc 20267 and 2.6.x = corruption by Chris Smart
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3
4 Well, I'm running:
5 Linux hax 2.6.3-gentoo-r2 #3 Wed May 5 02:22:32 PDT 2004 i686 Intel(R)
6 Pentium(R) 4 CPU 2.40GHz GenuineIntel GNU/Linux
7
8 WIth a Promise:
9 20269:0000:02:04.0 Unknown mass storage controller: Promise Technology,
10 Inc. 20269 (rev 02)
11
12 I've got 2 Maxtor 7200rpm 120's as primary on each Promise channel with
13 these results:
14
15 2mb cache:
16 hax root # hdparm -tT /dev/hdf
17
18 /dev/hdf:
19 ~ Timing buffer-cache reads: 1412 MB in 2.00 seconds = 705.40 MB/sec
20 ~ Timing buffered disk reads: 142 MB in 3.02 seconds = 47.01 MB/sec
21
22 8mb cache:
23 hax root # hdparm -tT /dev/hdg
24
25 /dev/hdg:
26 ~ Timing buffer-cache reads: 1372 MB in 2.00 seconds = 686.10 MB/sec
27 ~ Timing buffered disk reads: 168 MB in 3.03 seconds = 55.53 MB/sec
28
29 I've also got 4 other ide disks on the mobo controllers and a u160 hba
30 and single 15K boot drive.
31
32 No ide tweaks were made, this system is less than a week old atm.
33
34 Matt Hallmark
35
36 Chris Smart wrote:
37 | sorry.. I meant "..with promise ultra100 controller (namely 20267
38 | chipset) and *2.6.x* kernels?"
39 |
40 | that's 2.6, not 2.5.. thanks
41 |
42 | Chris Smart wrote:
43 |
44 |> Howdy,
45 |> Anyone had any problems (or know of any fixes) with promise ultra100
46 |> controller (namely 20267 chipset) and 2.5.x kernels?
47 |>
48 |> 2.4.x seems rock stable, and fast (55mb/sec)
49 |>
50 |> 2.6.x is slow (30mb/sec) and causes hdd corruptions (using "old"
51 |> promise driver for up to 20267).
52 |>
53 |> I've searched online but can't find any answers, so I turn to my
54 |> trusty friends on the gentoo-server list.
55 |>
56 |> Cheers,
57 |>
58 |> Chris
59 |
60 |
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Replies

Subject Author
Re: [gentoo-server] pdc 20267 and 2.6.x = corruption Chris Smart <taskara@××××××××××××.net>